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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sshd;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.util.Collections;
import org.apache.sshd.client.kex.DHG1;
import org.apache.sshd.client.kex.DHG14;
import org.apache.sshd.client.kex.DHGEX;
import org.apache.sshd.client.kex.DHGEX256;
import org.apache.sshd.client.kex.ECDHP256;
import org.apache.sshd.client.kex.ECDHP384;
import org.apache.sshd.client.kex.ECDHP521;
import org.apache.sshd.common.KeyExchange;
import org.apache.sshd.common.NamedFactory;
import org.apache.sshd.common.util.SecurityUtils;
import org.apache.sshd.util.BaseTest;
import org.apache.sshd.util.BogusPasswordAuthenticator;
import org.apache.sshd.util.EchoShellFactory;
import org.apache.sshd.util.TeeOutputStream;
import org.apache.sshd.util.Utils;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertTrue;
/**
* Test key exchange algorithms.
*
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class KexTest
extends BaseTest
{
private SshServer sshd
;
private int port
;
@Before
public void setUp
() throws Exception {
port = Utils.
getFreePort();
sshd = SshServer.
setUpDefaultServer();
sshd.
setPort(port
);
sshd.
setKeyPairProvider(Utils.
createTestHostKeyProvider());
sshd.
setShellFactory(new EchoShellFactory
());
sshd.
setPasswordAuthenticator(new BogusPasswordAuthenticator
());
sshd.
start();
}
@After
public void tearDown
() throws Exception {
sshd.
stop(true);
}
@Test
public void testDHGEX256
() throws Exception {
testClient
(new DHGEX256.
Factory());
}
@Test
public void testDHGEX
() throws Exception {
testClient
(new DHGEX.
Factory());
}
@Test
public void testDHG14
() throws Exception {
if (SecurityUtils.
isBouncyCastleRegistered()) {
testClient
(new DHG14.
Factory());
}
}
@Test
public void testDHG1
() throws Exception {
testClient
(new DHG1.
Factory());
}
@Test
public void testECDHP521
() throws Exception {
testClient
(new ECDHP521.
Factory());
}
@Test
public void testECDHP384
() throws Exception {
testClient
(new ECDHP384.
Factory());
}
@Test
public void testECDHP256
() throws Exception {
testClient
(new ECDHP256.
Factory());
}
private void testClient
(NamedFactory
<KeyExchange
> kex
) throws Exception {
SshClient client = SshClient.
setUpDefaultClient();
ByteArrayOutputStream sent =
new ByteArrayOutputStream();
ByteArrayOutputStream out =
new ByteArrayOutputStream();
try {
client.
setKeyExchangeFactories(Collections.
singletonList(kex
));
client.
start();
ClientSession session = client.
connect("smx",
"localhost", port
).
await().
getSession();
session.
addPasswordIdentity("smx");
session.
auth().
verify();
ClientChannel channel = session.
createChannel(ClientChannel.
CHANNEL_SHELL);
PipedOutputStream pipedIn =
new PipedOutputStream();
channel.
setIn(new PipedInputStream(pipedIn
));
OutputStream teeOut =
new TeeOutputStream
(sent, pipedIn
);
ByteArrayOutputStream err =
new ByteArrayOutputStream();
channel.
setOut(out
);
channel.
setErr(err
);
assertTrue
(channel.
open().
await().
isOpened());
teeOut.
write("this is my command\n".
getBytes());
teeOut.
flush();
StringBuilder sb =
new StringBuilder();
for (int i =
0; i
< 10; i++
) {
sb.
append("0123456789");
}
sb.
append("\n");
teeOut.
write(sb.
toString().
getBytes());
teeOut.
write("exit\n".
getBytes());
teeOut.
flush();
channel.
waitFor(ClientChannel.
CLOSED,
0);
channel.
close(false);
} finally {
client.
stop();
}
assertArrayEquals
(sent.
toByteArray(), out.
toByteArray());
}
}